piaget's stages of cognitive development
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Piaget’s Psychological Development
Arooba Asmat DevSpeech-Language Pathologist
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Piaget (1896 - 1980)• Swiss Psychologist, worked for
several decades on understandingchildren’s cognitive development
• Most widely known theory of cognitive development.
• Was intrigued by kids’ thoughts & behavior, & worked to understand their cognitive development
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Piaget’s Stages of Cognitive Development
• A child’s capacity to understand certain concepts is based on the child’s developmental stage
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Piaget’s Stages
• Believed that all children develop according to four stages based on how they see the world.– He thought the age may vary some, but
that we all go through the stages in the same order.
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Piaget’s Four Stages
1. Sensori-motor (birth –2 years)2. Preoperational (2y-7y)3. Concrete operational (7y-11y)4. Formal operations (12y-15y)
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Sensorimotor Stage • Birth to about 2 years, rapid change
is seen throughout• The child will:
– Explore the world through senses & motor activity
– Early on, baby can’t tell difference between themselves & the environment
– If they can’t see something then it doesn’t exist
– Begin to understand cause & effect– Can later follow something with their
eyes
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Preoperational Stage• About 2 to about 7
– Better speech communication– Can imagine the future & reflect on the
past– Develop basic numerical abilities– Still pretty egocentric, but learning to be
able to delay gratification– Can’t understand conservation of matter – Has difficulty distinguishing fantasy from
reality (ex: cartoon characters are real people).
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Preoperational Stage• Conservation of matter –
understanding that something doesn’t change even though it looks different, shape is not related to quantity
• Ex: Are ten coins set in a long line more than ten coins in a pile?
• Ex: Is there less water if it is poured into a bigger container?
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Piaget’s Piaget’s PrePre--
Operational Operational StageStage
Inability to understand conservation of matter.
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Concrete Operational Stage
• From about 7 to about 11– Abstract reasoning ability & ability
to generalize from the concrete increases
– Understands conservation of matter
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Formal Operations
• From about 12 to about 15y– Be able to think about
hypothetical situations– Form & test hypotheses– Organize information– Reason scientifically
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Piaget’s Development• Development happens from one stage
to another through interaction with the environment.
• Changes from stage to stage may occur abruptly and kids will differ in how long they are in each stage.
• Cognitive development can only happen after genetically controlled biological growth occurs.
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Piaget’s Development• Development leads to learning
– Drive for development is internal– The child can only learn certain things
when she is at the right developmental stage
– Environmental factors can influence but not direct development
– Development will happen naturally through regular interaction with social environment
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Problems with Piaget’s Theory
• Children often grasp ideas earlier than what Piaget found
• Cognitive development across domains is inconsistent (e.g. better at reading than math)
• Studies have shown that development can to some degree be accelerated
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Thank You